Hydroxypropyl methyl cellulose (HPMC) ndi polima wosunthika yemwe amagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana, kuphatikiza chakudya, mankhwala, ndi zomangamanga. Ndi semi-synthetic yochokera ku cellulose, yomwe ndi polima yachilengedwe yomwe imapezeka m'makoma a cellulose. HPMC amapangidwa ndi mankhwala kusintha mapadi ndi hydroxypropyl ndi methyl magulu, amene bwino madzi ake solubility, mamasukidwe akayendedwe, ndi katundu zina. M'nkhaniyi, tikambirana za HPMC ndi ntchito zake m'mafakitale osiyanasiyana.

Kusungunuka kwamadzi

Chimodzi mwazinthu zofunika kwambiri za HPMC ndi kusungunuka kwake m'madzi. HPMC imasungunuka mosavuta m'madzi kuti ipange yankho lomveka bwino, lowoneka bwino. Kuchuluka kwa kusungunuka kumadalira kuchuluka kwa m'malo (DS) wa HPMC. DS imatanthawuza kuchuluka kwa magulu a hydroxypropyl ndi methyl omwe amawonjezeredwa pa molekyulu iliyonse ya cellulose. DS ikakwera, HPMC imasungunuka kwambiri m'madzi. HPMC yokhala ndi DS ya 1.8 kapena kupitilira apo imatengedwa kuti ndi yosungunuka kwambiri m'madzi.

Viscosity

Chinthu china chofunikira cha HPMC ndi kukhuthala kwake. HPMC ndi polima kwambiri viscous, kutanthauza kuti ali wandiweyani, syrupy kugwirizana. The mamasukidwe akayendedwe a HPMC zimadalira zinthu zingapo, kuphatikizapo DS, molecular kulemera, ndi ndende ya polima mu njira. DS yapamwamba ndi kulemera kwa maselo kumabweretsa kukhuthala kwakukulu. The mamasukidwe akayendedwe a HPMC akhoza kusinthidwa ndi zosiyanasiyana ndende ya polima mu njira.

Kutentha Kukhazikika

HPMC ndi yokhazikika ndipo imatha kupirira kutentha mpaka 200 ° C popanda kuwonongeka kwakukulu. Izi zimapangitsa kuti zikhale zoyenera kugwiritsidwa ntchito m'mafakitale ambiri omwe amakhudza kutentha kwambiri, monga kuyanika ndi kupopera. HPMC ilinso ndi kukana zabwino kwa zidulo ndi zapansi, zomwe zimapangitsa kukhala oyenera ntchito mu malo acidic kapena zamchere.

Katundu Wopanga Mafilimu

HPMC ili ndi zinthu zabwino kwambiri zopangira mafilimu, zomwe zimapangitsa kuti zikhale zothandiza pamagwiritsidwe osiyanasiyana. HPMC ikhoza kupanga filimu yolimba, yosinthika yomwe imagonjetsedwa ndi chinyezi, kutentha, ndi mankhwala. Izi zimapangitsa kuti zikhale zothandiza m'makampani opanga mankhwala kuti azipaka mapiritsi ndi makapisozi kuti aziwoneka bwino komanso azikhala okhazikika. HPMC itha kugwiritsidwanso ntchito m'makampani azakudya kupanga makanema odyedwa omwe angagwiritsidwe ntchito kusunga ndi kuteteza zakudya.

Zomatira Properties

HPMC ili ndi zomatira zabwino, zomwe zimapangitsa kuti zikhale zothandiza pantchito yomanga. HPMC itha kugwiritsidwa ntchito ngati chomangira pazinthu zopangira simenti, monga matope ndi grout. Itha kugwiritsidwanso ntchito ngati thickener mu zomatira matailosi ndi ma fillers olowa. HPMC imawongolera magwiridwe antchito ndi magwiridwe antchito azinthu izi popereka zomatira bwino komanso kusunga madzi.

Mapulogalamu a HPMC

HPMC ili ndi ntchito zambiri m'mafakitale osiyanasiyana, kuphatikiza:

Makampani a Chakudya: HPMC imagwiritsidwa ntchito ngati thickener, stabilizer, ndi emulsifier muzakudya zambiri, monga sosi, mavalidwe, ndi zinthu zophika. Itha kugwiritsidwanso ntchito kupanga mafilimu odyedwa ndi zokutira.

Makampani Opanga Mankhwala: HPMC imagwiritsidwa ntchito ngati piritsi ndi kapisozi ❖ kuyanika wothandizila, komanso binder, disintegrant, ndi wokhazikika-kumasulidwa wothandizira mu mankhwala formulations.

Makampani Odzola Zodzoladzola: HPMC imagwiritsidwa ntchito ngati thickener ndi stabilizer mu zodzikongoletsera zambiri mankhwala, monga mafuta odzola, creams, ndi shampu.

Makampani Omanga: HPMC imagwiritsidwa ntchito ngati chomangira, chokhuthala, komanso chosungira madzi muzinthu zopangidwa ndi simenti, monga matope, zomatira ndi matailosi.

Mapeto

Hydroxypropyl methyl cellulose (HPMC) ndi polima yosunthika yomwe ili ndi zinthu zambiri zothandiza, kuphatikiza kusungunuka kwamadzi, kukhuthala, kukhazikika kwamafuta, kupanga mafilimu, komanso zomatira. HPMC ntchito zosiyanasiyana mafakitale, kuphatikizapo chakudya, mankhwala, zodzoladzola, ndi zomangamanga. Kuthekera kwake kupanga mafilimu amphamvu, osinthika komanso kukonza magwiridwe antchito ndi magwiridwe antchito azinthu zosiyanasiyana kumapangitsa kuti ikhale yofunika kwambiri pamapangidwe ambiri. HPMC ndiyotetezekanso kuti igwiritsidwe ntchito muzakudya ndi mankhwala ndipo yavomerezedwa ndi mabungwe olamulira padziko lonse lapansi. Mwakutero, HPMC ndi polima yofunika komanso yogwiritsidwa ntchito kwambiri yomwe imagwira ntchito yofunika kwambiri pamapulogalamu ambiri osiyanasiyana.